A. 1. Check download location: Open your file manager and navigate to the 'Downloads' folder to see if the files are there. 2. Restart the app: Close and reopen the app to refresh its file access. 3. Ensure sufficient storage: Check if your device has enough storage space. Go to 'Settings' > 'Storage' to verify available space.

B. 4. Re-download the files: If the files are still missing, try downloading them again and ensure the download completes successfully.